APT. - Page 115

CHAPTER 2 PCL - 95 

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# = 1024 indicates TIFF format.  This is valid only for 600 dpi data.  The raster graphics data is transferred 
with the ESC*b###W (### = data length) command.  The TIFF file follows this mode set command.  This 
printer does not support LZW compression.  Pages that contain TIFF data are printed in gray scale mode.  
The TIFF data contains the header, tag and print data. 
This mode supports TIFF Version 5.0 file format.  In this mode, the transfer graphics data count does not 
have a limitation of 32,767 bytes.  This printer supports both "MM" (big endian) format and "II" (little 
endian) format.  The Print model is not applied to this type of data transfer.   The printer has some limitations 
on the TIFF format as follows:- 
1. Tag position has to be prior to the picture (strip) data. 
2. Compression tag - Tag ID : 259 
  

The printer supports 1, 2, 3, 4 and 32773. 

1 : no compression (Bits/Sample=1,4,8) 

2 : CCITT G3 MH (Bits/Sample=1) 

3 : CCITT G3 MR (Bits/Sample=1) 

4 : CCITT G4 (Bits/Sample=1) 

32773 : Pack Bits (Bits/Sample=1) 

3. Sample/pixel  - Tag ID : 277 
  

This value should be 1.   This means the printer accepts only monochrome TIFF files. 

4. Bits/Sample  - Tag ID: 258 
  

The printer supports 1,4 and 8. 

If you specify 4 or 8 and the printer resolution is 600 dpi, the printer prints the page using  

APT. 

5. Horizontal resolution (Tag ID=282) and Vertical resolution (Tag ID=283) 

Compression type 

Bits/Sample

Available Resolution 

APT 

No Compression 

4,8 

From 1 dpi to 300 dpi 

ON 

No Compression  
Pack Bit 

1 Printer's 

Resolution 

(300 or 600 dpi) 

OFF 

CCITT G3 & G4 

1 

200,300,400,600 dpi 
400 & 600 dpi are only available 
when the printer operates in 600 
dpi mode. 

OFF 

We recommend 150 dpi or less resolution for APT to reduce data size.

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# = 1025 indicates the Brother original Compression Method. 

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# = 1026 indicates the Brother Advanced Data Transfer Mode.